Update index.tsx

src/views/order-detail/index.tsx

@@ -686,7 +686,7 @@ export default defineComponent({
                         </span>
                       </div>
                     </div>
-                    <div class={styles.isDiscountPrice}>已优惠 ¥{moneyFormat(this.countDiscountPrice)}</div>
+                    {this.countDiscountPrice > 0 ? <div class={styles.isDiscountPrice}>已优惠 ¥{moneyFormat(this.countDiscountPrice)}</div> : ''}
                   </div>
                 </div>
                 <Button